CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
 
	 | 
    1 | Mainly Alpha | 
 
	 | 
    1.25 | Alpha Horseshoe | 
 
	 | 
    1.25.40 | Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat | 
 
	 | 
    1.25.40.20 | Ankyrin repeat-containing domain | 
Domain Context
CATH Clusters
| Superfamily | Ankyrin repeat-containing domain | 
| Functional Family | Poly [ADP-ribose] polymerase | 
Enzyme Information
| 2.4.2.- | 
							 Pentosyltransferases. 
							based on mapping to UniProt Q9H2K2 		
							
							
						 | 
					
| 2.4.2.30 | 
							 NAD(+) ADP-ribosyltransferase. 
							based on mapping to UniProt Q9H2K2 		
							NAD(+) + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D- ribosyl)(n+1)-acceptor. 
							-!- The ADP-D-ribosyl group of NAD(+) is transferred to an acceptor carboxy group on a histone or the enzyme itself, and further ADP- ribosyl groups are transferred to the 2'-position of the terminal adenosine moiety, building up a polymer with an average chain length of 20-30 units. 
						 | 
					
UniProtKB Entries (1)
| Q9H2K2 | 
						 TNKS2_HUMAN 
						Homo sapiens 
						Poly [ADP-ribose] polymerase tankyrase-2 
					 | 
				
PDB Structure
| PDB | 3TWQ | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | 
					 Structural basis and sequence rules for substrate recognition by tankyrase explain the basis for cherubism disease. 
					    
					    Cell(Cambridge,Mass.) 
					    
					 | 
			
